Magnetic ore-separator.



S. N. SMITH.

MAGNETIC ORE SEPARATOR.

APPLICATION FILED FEB-@1915.

1L 9 1 1 3 9 I Patented NOV. 23, 1915.

ens PAM SAMUEL N. SMITH, OF NEW YORK, N. Y., ASSIGNOR OF ONE-HALF UFO HERMAN W. HOOPS, OF NEW YORK, N. Y.

MAGNETIC ORE-SEPARATOR.

I Specification of Letters Patent.

rammed Nov. as, rare.

Application filed February 8, 1915. Serial No. 6,751.

ore from its gangue by the hydraulic proc-"- ess or what are commonly known as wet process ore separators, as distinguished from separatorswhich can be used only for separating ore that is perfectly dry.

The object of this invention is to provide a new and improved wet process magnetic ore separator which is simple in construction, strong, durable and compact, effective and economical in use and is so constructed as to present the particles of ore in such a manner that they can be rapidly and reliably separated from the gangue.

In the accompanying drawings in which like letters of reference indicate like parts in all the figures, Figure 1 is a longitudinal sectional view of my new and improved magnetic ore separator. Fig. 2 is a detail view of the tension device for the endless apron. Fig. 3 is a plan view of the pan. Fig. at is a detail sectional view on the line (cm of Fig. 3.

The deposits of pulverized. ore are usually found in the bottoms of rivers, bays -and so forth. and with the sand with which the ore is mixed, it is pumped up or dredged and delivered to theseparator. I

Between the front standards 1 of an up right frame 2 a magnetic rum 3 is mounted to rotate by gudgeons 4: and over the drum an endless apron 5 is passed, which is preferably made of very heavy cotton fabric and this apron is also passed over a non-magnetic drum 6 mounted between the rear standards 7 of the frame. Between the drums 3 and 6 the upper run of the apron is passed over 'a table 8 attached to the rear standards 7, and supported by arms 9 which are attached to the front standards Between downwardly projecting arms 10 on the table 8, a roller 11 is mounted, over which the bottom run of the apron passes '55 and is thus held raised. I

A forked frame 12 is pivoted to the sides of the frame 2 and in the same .a roll 13 is pivoted and the arms of the frame are united by a bar l l. A spring 15 is attached to to the bar 1e and to the underside of the table 8 and to an arm 16 projecting rearward from the frame 12 a weight 17 is attached. The spring and the weight serve for holding the apron 5 taut. mounted between arms 19 pivoted to the rear standards is pressed against that part of the apron passing over the bottom part of the rear drum by springs 32 for the pur pose of squeezing off the particles of ore that still adhere to the apron.

A pan 20 is mounted in the lower part of the frame. It is supported near its for ward end by brackets 21 and at its rear is supported by arms 22 which can be adjusted 7.5

by screws. Within the pan 20, partitions or deflecting plates are arranged. At or near the rear or closed end of the pan, each deflecting plate is. connected with the side of the pan and is gradually inclined upward toward the front. At-it-s bottom edge it is hinged to the bottom of the pan and at'its top, near the front, it is connected with a screw 2% for inclining the top of the plate inward, more or less. The front of the pan is open and beneath the open end a gutter or belt conveyer 25 is arranged for carrying oil the mixture of sand and water. 26 indicates in dotted lines a chutefor delivering the mixture of ore, sand and water into the pan.

A series of pipes 28 extending transversely under the pan and connected with a water supply pipe 29 are provided with numerous nozzles 30 passing'through the bottom of the pan. These nozzles are d1sposed at the sides of the pan and are inclined so as to discharge somewhat toward the sides of the pan. A deflector 31 diverts the water as it flows into the pan, and so assists the jets in establishing a transverse circulation in the current.

The operation is as follows: A mixture of sand, finely divided ore and water is delivered into the pan 20 through the chute 26 or the pipe 31, it depending somewhat upon the nature of the ore delivered. The sand and ore are carried forward by the jets of A roller 18'65 nozzles 30 a water, enterin the pan from below through are thoroughly mixed and' agitated and by thev partitions or plates 23 are; crowded toward the front of the pan- "where the magnetic drum is located. The

particles; of iron and Iron ore are taken 1. belt as indicated or by a motor, etc. The top run of the apron is supported by the table 8'whioh prevents it-from sagging under the Weight of the ore The ore drops ed the apron as the same passes down on the rear 1 I roller or drum 6 and what ore still adheres.

is swept off by the squeezing roller 18. The

apron passes up over. the roller 11 andxthendown to the magnetic drum where it akes up'ore again and so on. The sand, deprived ofIitsore passes with the water out open, front end of the pan.

The machine is fed through a pipe 31 or the chute26 which delivers water laden with the gangue to the pan 20. Y

'- ,32 is a guide for the apron which is placed so' as to be tangent to'thedrum, The table has flanges 33 for guiding the apron to the drum 6.

Having described my invention what I claim, as new and desire to secure by Letters I Patent is 1.1a a magnetic ore separator,-the com-. bmation wlth drums, of which one 1s magnetic, of an endless apron passed over the same, a pan closed at the rear end and open 2. In a magnetic ore separator, the comol' the bination with drums, of which one is magnetic, of an endless apron passed over the which partitions are connected with the pan at' the rear and gradually converge toward each other and whichpartitions are hinged at the bottom and means for adjusting the deflectors to be inclined inward and upward,

substantially as set forth. I A magnetic ore separator including in combination a magnetic drum, a pan, means \for supplying a vehicle bearing finely divided material to said pan, water jets dis- .oha ging into said pan for maintaining the dist 'ibution of said material in said vehicle while flowing to said drum, and deflectors situated at each side offlthe pan for directing the water toward the center of the pan. 4. A magnetic ore separator including in combination a magnetic drum, a pan,means for supplying a vehicle bearing finely divided material to said pan, water jets discharging into said pan for maintaining the distribution of said material in said vehicle whileflowing-to said drum, and'adju'stable deflectors situated at each side of the pan for-directing the water toward. the center of the'pan.

:5. 'A magnetic ore separator including in combination a magnetic drum, a pan; a feed pipe adapted to discharge-water into said pan and means for so modifying the current as to produce a transverse circulation there- 1n, said means including side ets and walls.

' SAMUEL N. SMITH.

WVitnesses I E. H. PAnluNs, CHARLOTTE BERGER. 

